Office armchair



FIG. 1 is a perspective view of the office armchair;

FIG. 2 is a front view of the armchair of FIG. 1;

FIG. 3 is a left side view of the armchair of FIG. 1;

FIG. 4 is a right side view of the armchair of FIG. 1;

FIG. 5 is a rear view of the armchair of FIG. 1; and,

FIG. 6 is a top view of the armchair of FIG. 1. 

The ornamental design for an office armchair, as shown. 